package com.qww;

public class Exec05 {

    public static void main(String[] args) {
        String result = method1(10, "");
        System.out.println(result);
    }

    public static String method1(int a, String s) {
        return a > 0 ? method1(a >>> 1, (a & 1) + s) : s;
    }
}